ICD-10 Code G50 – Disorders of trigeminal nerve (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code G50 – Disorders of trigeminal nerve
What it is
G50 identifies disorders affecting the trigeminal nerve, the cranial nerve that carries facial sensation. Use it when documentation indicates a trigeminal nerve disorder without a more specific subtype.
Clinical signs
Clinical features vary; refer to documentation. Commonly reported findings include facial pain, numbness, tingling, or altered sensation in one or more trigeminal distributions.
When to use this code
Use G50 when the record documents a trigeminal nerve disorder and no more specific ICD-10 code is provided. It may also fit nonspecific trigeminal neuropathy or related nerve dysfunction noted by the clinician.
If the chart names a more precise diagnosis, code that condition instead. Check documentation for laterality, cause, or a specific trigeminal branch when available.
Do not use for
Do not use this code for facial pain with a different documented cause, or for conditions outside the trigeminal nerve. If the provider specifies another diagnosis, follow that wording.
Coding tip
Query for the exact trigeminal diagnosis and any stated cause before assigning G50.